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   /*
    * Copyright 2015 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   https://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  package io.netty.handler.codec.dns;
  
  import io.netty.util.internal.StringUtil;
  import io.netty.util.internal.UnstableApi;
  
  /**
   * The default {@link DnsQuestion} implementation.
   */
  @UnstableApi
  public class DefaultDnsQuestion extends AbstractDnsRecord implements DnsQuestion {
  
      /**
       * Creates a new {@link #CLASS_IN IN-class} question.
       *
       * @param name the domain name of the DNS question
       * @param type the type of the DNS question
       */
      public DefaultDnsQuestion(String name, DnsRecordType type) {
          super(name, type, 0);
      }
  
      /**
       * Creates a new question.
       *
       * @param name the domain name of the DNS question
       * @param type the type of the DNS question
       * @param dnsClass the class of the record, usually one of the following:
       *                 <ul>
       *                     <li>{@link #CLASS_IN}</li>
       *                     <li>{@link #CLASS_CSNET}</li>
       *                     <li>{@link #CLASS_CHAOS}</li>
       *                     <li>{@link #CLASS_HESIOD}</li>
       *                     <li>{@link #CLASS_NONE}</li>
       *                     <li>{@link #CLASS_ANY}</li>
       *                 </ul>
       */
      public DefaultDnsQuestion(String name, DnsRecordType type, int dnsClass) {
          super(name, type, dnsClass, 0);
      }
  
      @Override
      public String toString() {
          StringBuilder buf = new StringBuilder(64);
  
          buf.append(StringUtil.simpleClassName(this))
             .append('(')
             .append(name())
             .append(' ');
  
          DnsMessageUtil.appendRecordClass(buf, dnsClass())
                        .append(' ')
                        .append(type().name())
                        .append(')');
  
          return buf.toString();
      }
  }